GB800639A - Manufacture of cation exchangers of the polystyrene-type - Google Patents
Manufacture of cation exchangers of the polystyrene-typeInfo
- Publication number
- GB800639A GB800639A GB20922/56A GB2092256A GB800639A GB 800639 A GB800639 A GB 800639A GB 20922/56 A GB20922/56 A GB 20922/56A GB 2092256 A GB2092256 A GB 2092256A GB 800639 A GB800639 A GB 800639A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polystyrene
- formaldehyde
- room temperature
- paraformaldehyde
- manufacture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/20—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/44—Preparation of metal salts or ammonium salts
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Cation exchange resins are obtained by sulphonating polystyrene beads or grains of from about 0.4 to 0.7 mm. size and cross-linking with formaldehyde or a formaldehyde yielding material in the presence of a strong acid under anhydrous conditions. The polystyrene is sulphonated, e.g. by chlorosulphonic acid, oleum or concentrated sulphuric acid at room temperature or while raising the temperature to 140 DEG C. and gaseous formaldehyde or paraformaldehyde added. Alternatively paraformaldehyde may be dissolved in the sulphonating agent and reacted with the polystyrene at room temperature for several days while heating e.g. to 120 DEG C. The product is blown with moist air, washed, treated with alkalis such as sodium carbonate, and dried.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE800639X | 1955-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB800639A true GB800639A (en) | 1958-08-27 |
Family
ID=6713574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20922/56A Expired GB800639A (en) | 1955-07-08 | 1956-07-05 | Manufacture of cation exchangers of the polystyrene-type |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB800639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016081226A1 (en) * | 2014-11-17 | 2016-05-26 | 3M Innovative Properties Company | Polymeric materials for capturing formaldehyde |
| CN115215517A (en) * | 2021-04-16 | 2022-10-21 | 上海第二工业大学 | Method for preparing carbon adsorption material by mixing waste foamed plastic and dewatered sludge of municipal sewage plant |
-
1956
- 1956-07-05 GB GB20922/56A patent/GB800639A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016081226A1 (en) * | 2014-11-17 | 2016-05-26 | 3M Innovative Properties Company | Polymeric materials for capturing formaldehyde |
| US10391471B2 (en) | 2014-11-17 | 2019-08-27 | 3M Innovative Properties Company | Polymeric materials for capturing formaldehyde |
| CN115215517A (en) * | 2021-04-16 | 2022-10-21 | 上海第二工业大学 | Method for preparing carbon adsorption material by mixing waste foamed plastic and dewatered sludge of municipal sewage plant |
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